What it looks like
Silvery winding mines run through newly expanded young leaves, which crinkle and roll inward, with a translucent larva at the head of the mine. It does not attack hardened spring leaves and concentrates on shoots growing from summer into autumn.
What other growers did about it
A page like this one can tell you what citrus leafminer on yuzu is and what to try. What it cannot tell you is what actually happened to someone who had it on the same plant, at the same point in the season, and what they did next.
Gadenin is a free garden journal built around that. You photograph the plant, tag what you are seeing, and the entries line up by date for each plant you grow.
- Tag the problem and the app tells you how many other growers have logged the same thing on the same plant.
- Growers who make their records public can be followed, so you can read what they did and how it turned out.
- Next season your own entries come back at the same point in the year, so you check the plant before it starts.
Free on iPhone. Recording, tagging and reading public records cost nothing.
About this pest or disease
The general description, causes, and the full list of affected plants are on the pest and disease page. Citrus Leafminer